I recently updated the firmware on my T2i and when I am metering a room either through the viewfinder or my LCD screen the ISO and exposure information will only stay onscreen for 2 seconds. If I'm trying to dial in exposure or aperture information, I have to keep pressing my shutter halfway to get the information back up. Is there a setting I am overlooking to keep this information displayed or has anyone noticed this as an issue after firmware upgrading to 1.0.9?

**UPDATE After looking closely at my camera, my issue seems to be that when I have live view on and am looking at the lcd, if I meter, as soon as i release the shutter the iso/exposure information goes away. If I press the A+/- button to the right, I get my ISO/exposure information for two seconds. Not useful when I'm trying to meter all around a room with live view. I keep having to press the shutter button down halfway. Searching through my menus, I cannot seem to find any function that controls this.

**UPDATE Thank you to the posters leaving comments, however I'd like to reiterate that this is a 550d (T2i), not a 50D.

Most likely your firmware reset your Setup and you have to change the Meter Operating Time back to something longer, say 30 seconds. I'm just guessing though :)
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ItaiSep 14 '12 at 17:01

I'd like to find out what it's called on this camera and where it's located in my system menu.
–
huzzahSep 14 '12 at 17:30

1

On Canon, the Setup menu is distinguished by a wrench icon. The list is linear below that and if you do not find Meter Operating Time at the top-level, try under Live View Settings.
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ItaiSep 14 '12 at 17:37

@Itai's right: on the 50D it is be under Live view function settings, Metering Timer.
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FrancescoSep 14 '12 at 18:11